KR20100061674A - Detergent for the skin and method for cleansing the skin with the same - Google Patents

Abstract

An object of the present invention is to provide an excellent skin cleansing agent and skin cleaning method capable of suppressing dryness of skin after washing, when foaming is fine and fine, and foaming property at low temperature is good when filled into a foamer container. do. That is, this invention contains at least any one of (A) betaine type amphoteric surfactant, (B) N-acyl methyl taurine salt, and (C) polyoxy ethylene alkyl sulfo succinate and alkyl sulfo succinate, Each component relates to a skin cleansing agent having a mass ratio of (C) / [(A) + (B)] = 0.05 to 0.5 and a skin cleansing method using the skin cleansing agent.

Description

Detergent for the skin and method for cleansing the skin with the same}

The present invention relates to a skin cleansing agent and a method for cleaning the skin using the same, and more specifically, the foam texture is fine and fine, and when discharged into a foamer container, the discharge of foam at low temperature is good, and The present invention relates to a skin cleansing agent capable of inhibiting dry skin afterwards and a skin cleansing method using the skin cleansing agent.

Conventionally, as the main components of the skin cleansing agent, high fatty acid salts, polyoxyethylene alkyl ether sulfates, monoalkyl phosphates and the like are known. Among them, high-quality fatty acid salts, polyoxyethylene alkyl ether sulfates, and monoalkyl phosphates are known. Fatty acid salts are used a lot.

However, when the higher fatty acid salt is used, problems such as insufficient foaming and fine graining, crystallization are likely to occur, and when the foamer container is filled, the dischargeability from the container is deteriorated. There are problems, such as giving a dry feeling to the skin after washing.

In order to solve such a problem, various techniques have been conventionally reported, for example, at least any one selected from N-acyl amino acid anionic surfactants, other anionic surfactants, amphoteric surfactants, and semipolar surfactants. Detergent composition containing one compound and a polyhydric alcohol (Patent Document 1); detergent composition comprising a lauric acid salt, myristic acid salt, and parmimate salt in a specific mass ratio (Patent Document 2); anionic surfactant and / Or a detergent composition comprising an amphoteric surfactant, water-insoluble particles, and a nonionic surfactant (Patent Document 3); impregnating a lauric acid alkaline amino acid salt and a myristic acid alkaline amino acid salt in a specific mass ratio and further being a higher fatty acid. Detergent composition (Patent Document 4) comprising; sulfo succinate alkyl salt and / or sulfo succinate polyoxy ethylene alkyl salt, betaine positive Detergent composition comprising surfactant, acrylic acid methacrylic acid alkyl copolymer, higher fatty acid salt and powder (Patent Literature 5); sulfo succinic anionic surfactant, N-acyl acid amino acid anionic surfactant and betaine amphoteric interface Detergent composition (patent document 6) containing the dispersion, the conditioning component, and water of a fatty acid glycol ester, at least any one of an active agent; Cleansing composition (The patent which contains specific acyl akuchireto and specific complement surfactant in specific mass ratio) Document 7); Skin cleansing agent containing anionic surfactant and amphoteric surfactant, oil and water in a specific mass ratio (Patent Document 8); at least of N-acyl carboxylic acid type surfactant and N-acyl sulfonic acid type surfactant In either case, at least one of the amphoteric surfactant, the zwitterionic surfactant, and the semipolar surfactant is an alkyl glycol polyhydric alcohol. Detergent composition (patent document 9) which contains at least one of a terter compound, ethyl alcohol, glycerin, propylene glycol, and dipropylene glycol by specific mass ratio; Acyl methyl taurine salt type | mold anionic surfactant, and alkylamide amino acid salt type | mold positive interface Detergent composition which contains water-soluble dihydric alcohol in specific mass ratio at least either of an active agent and an alkyl imino dicarboxylate type amphoteric surfactant, and at least either an alkyl betaine type amphoteric surfactant and an alkyl amide betaine type amphoteric surfactant. (Patent Document 10); Detergent compositions (Patent Document 11) and the like containing anionic surfactants, amphoteric surfactants and sucrose fatty acid esters in specific mass ratios have been reported.

However, even in the technique as described above, the skin cleansing agent excellent in all the fineness of the fine texture of the foam, the discharge property of the foam at the low temperature when the foamer container is filled, and the dryness of the skin after washing does not come out, so There is a demand for an excellent skin cleansing agent that is fine and fine in foaming, and has good foam discharge property at low temperatures when filled in a foamer container, and which can suppress drying of the skin after washing.

Patent Document 1: Japanese Patent Application Laid-Open No. 2006-183039

Patent Document 2: Japanese Patent Application Laid-Open No. 2005-154651

Patent Document 3: Japanese Patent Application Laid-Open No. 2005-187411

Patent Document 4: Japanese Patent Application Laid-Open No. 1-238521

Patent Document 5: Japanese Patent Application Laid-Open No. 2006-169453

Patent Document 6: Japanese Patent Application Laid-Open No. 2005-289823

Patent Document 7: Japanese Patent Application Laid-Open No. 6-40850

Patent Document 8: Japanese Patent Application Laid-Open No. 7-25726

Patent Document 9: Japanese Patent Application Laid-Open No. 2005-146016

Patent Document 10: Japanese Patent Application Laid-Open No. 2006-206720

Patent Document 11: Japanese Patent Application Laid-Open No. 2007-138023

This invention is made | formed in view of the said situation, and is excellent and excellent skin cleansing agent which foams fine grain and is fine, and when foaming into a foamer container, the discharge property of foam at low temperature is good and it can suppress drying of the skin after washing | cleaning. And it aims to provide the skin washing method using the said skin cleansing agent.

MEANS TO SOLVE THE PROBLEM As a result of earnestly examining in order to achieve the said objective, (A) betaine type | mold surfactant, (B) N-acyl methyl taurine salt, (C) polyoxy ethylene alkyl sulfo succinate, and alkyl sulfo amber By combining at least one of the acid salts and by setting the mass ratio of (C) / [(A) + (B)] to a specific ratio, the foam is fine and fine, and foam at low temperature when filled in a foamer container. The present invention has been made by studying that an excellent skin cleaning agent capable of discharging the resin and having the ability to suppress drying of the skin after washing can be obtained.

Therefore, the present invention,

<1> (A) a betaine type amphoteric surfactant,

(B) N-acyl methyl taurine salt,

(C) at least one of polyoxyethylene alkyl sulfo succinate and alkyl sulfo succinate, wherein the content ratio of each of the components is, by mass ratio, (C) / [(A) + (B)] = 0.05 to 0.5 It is a skin cleansing agent characterized by the above-mentioned.

It is a skin cleansing agent as described in said <1> which is filled in a <2> former container.

<3> The skin cleansing method according to any one of the above <1> and <2> is used.

It is the skin washing method as described in said <3> which apply | coats and wash | cleans the skin-like foaming agent of the bubble shape (bubble state) discharged from a <4> foamer container by hand.

Advantageous Effects of Invention The present invention provides excellent skin cleansing agents and fine skin cleansing agents for foaming at low temperatures when the foaming is fine and fine, and which can suppress drying of the skin after washing. It is possible to provide a skin cleaning method.

(Skin cleanser)

The skin cleansing agent of the present invention comprises at least one of (A) a betaine-based amphoteric surfactant, (B) N-acyl methyl taurine salt, and (C) polyoxyethylene alkyl sulfo succinate and alkyl sulfo succinate, It contains in specific mass ratio, and contains other arbitrary components suitably as needed.

<(A) component>

There is no restriction | limiting in particular as said betaine type amphoteric surfactant ((A) component), According to the objective, it can select suitably, For example, an imidazoline type (amide amine type), an amide amino acid salt, a calvobetaine type (alkyl Betaine, alkyl amide betaine), sulfo betaine type (alkyl sulfo betaine, alkyl hydroxy sulfo betaine) and the like.

As said imidazoline type, a stearoylamide amine, palm oil alkyl-N-hydroxy ethyl imidazolinium betaine, etc. are mentioned, for example. As said calvobetaine type, for example, alkyl betaine, palm oil fatty acid amide propyl betaine as alkyl amide betaine, such as lauryl dimethyl amino acetate betaine, palm oil alkyl dimethyl amino acetate betaine, stearyl dimethyl amino acetate betaine, etc. And lauric acid amide propyl betaine. As the sulfo betaine type, for example, alkyl sulfo betaine, palm oil fatty acid dimethyl sulfopropyl betaine and the like, and alkyl hydroxy sulfo betaine, palm oil fatty acid dimethyl amino hydroxy sulfo betaine, lauryl dimethyl amino hydroxy sulfo betaine Etc., lauryl hydroxy sulfo betaine etc. are mentioned.

Among these, as said (A) component, the beta type amphoteric surfactant which is a calvobetaine type and has a C12-C18 monovalent hydrocarbon group as the alkyl ring is preferable, Among these, C1-C16 monovalent Betaine type amphoteric surfactant which has a hydrocarbon group is more preferable.

In addition, the said (A) component can be used individually by 1 type or in combination of 2 or more types.

There is no restriction | limiting in particular as content of the said (A) component, Although it can select suitably according to the objective, Among these, 2-20 mass% is preferable in the said skin cleansing agent, and 5-15 mass% is more preferable. When the said content is less than 2 mass%, the fine grain of a foamy form may become inadequate, and when it exceeds 20 mass%, it is unpreferable in the point which suppresses drying of the skin after washing. On the other hand, if the said content is in a more preferable range, it is advantageous at the point which can provide more excellent skin cleansing agent in removing fine grain of foam and drying of the skin after washing | cleaning.

<(B) component>

There is no restriction | limiting in particular as said N-acyl methyl taurine salt ((B) component), Although it can select suitably according to the objective, As the acyl group, it is preferable to have a C1-C21 monovalent hydrocarbon group, Among them, It is more preferable to have a monovalent hydrocarbon group having 11 to 15 carbon atoms. If carbon number of the said acyl group is in a more preferable range, it is advantageous at the point which can provide the skin cleaning material which was excellent in the discharge property of foam at the time of low temperature when it filled into a former container.

Moreover, as said salt, an alkali metal salt, an alkaline earth metal salt, an amine salt, or an amino acid salt is preferable, Among these, alkali metal salts, such as sodium and potassium, substituted or unsubstituted ammonium salts are more preferable. Moreover, sodium salt is especially preferable among these. If the salt is a sodium salt, it is advantageous in terms of providing mild skin cleansing properties with a superior skin cleansing agent.

Specific examples of the component (B) include N-lauroyl methyl taurine salt, N-millyl yl methyl taurine salt, N-palmityl methyl taurine salt, N-stearoyl methyl taurine salt and bovine fatty fatty acid methyl. Taurine salt, N- palm oil fatty acid methyl taurine salt, N-decanoyl methyl taurine salt, etc. are mentioned, Among these, N- palm oil fatty acid methyl taurine sodium is especially preferable.

In addition, the said (B) component can be used individually by 1 type or in combination of 2 or more types.

There is no restriction | limiting in particular as content of the said (B) component, Although it can select suitably according to the objective, Among these, 0.5-10 mass% is preferable in the said skin cleansing agent, and 1-5 mass% is more preferable. When the said content is less than 0.5 mass%, the fineness of foam may become inadequate, and when it exceeds 10 mass%, it is unpreferable from the point of the discharge property of foam at the time of low temperature at the time of filling into a foamer container. On the other hand, if the above content is within a more preferable range, it is advantageous in terms of providing finer fine grains of foam and excellent discharge of foam at low temperatures when filled into a foamer container, and providing a superior skin cleansing agent.

<(C) component>

There is no restriction | limiting in particular as at least either ((C) component) of the said polyoxy ethylene (henceforth, POE) alkyl sulfo succinate and alkyl sulfo succinate, Although it can select suitably according to the objective, As an alkyl ring (chain), it is preferable to have a C12-C22 monovalent hydrocarbon group, and it is more preferable to have a C12-C14 monovalent hydrocarbon group among these. If the number of carbon atoms of the alkyl ring is less than 12, it is not preferable in terms of skin irritation. If the number of carbon atoms is more than 22, it is not preferable in terms of discharge property of foam at low temperature when the foamer container is filled. On the other hand, if the carbon number of the alkyl ring is within a more preferable range, it is advantageous in that it can provide a more excellent skin cleanser in terms of mildness to skin and foaming property at low temperature when filled in a former container. .

Moreover, as said salt, an alkali metal salt, an alkaline earth metal salt, an amine salt, or an amino acid salt is preferable, Among these, alkali metal salts, such as sodium and potassium, substituted or unsubstituted ammonium salts are more preferable. Moreover, sodium salt is especially preferable among these. If the salt is a sodium salt, it is advantageous in terms of providing mild skin cleansing properties with a superior skin cleansing agent.

Moreover, as ethylene addition mole number of the said polyoxy ethylene alkyl sulfo succinate, 1-10 are preferable and 2-5 are more preferable in it. If the number of moles of ethylene added is less than 1, it is not preferable in view of the discharge property of foam at low temperature when filled in a foamer container. If the number of moles of ethylene is more than 10, it is not preferable in terms of fine grain of foam. On the other hand, if the number of moles of ethylene added is within a more preferable range, the foaming property and the graininess of the foam at low temperature when filled into the foamer container are fine, and in view of providing excellent skin cleaning material, the glass is advantageous. Do.

Moreover, as said (C) component, polyoxy ethylene alkyl sulfo succinate is especially preferable.

Specifically as said (C) component, POE (1) alkyl (12-14) sulfo succinate, POE (2) alkyl (12-14) sulfo succinate, POE (3) dialkyl (12-14) Sulfo succinate, POE (5) dialkyl (12-14) sulfo succinate, POE (7) dialkyl (12-14) sulfo succinate, POE (9) dialkyl (12-14) sulfo succinate, POE (2) Alkyl (12-15) sulfo succinate, sulfo succinate POE (2) monooleyl amide salt, POE (4) palm oil fatty acid isopropanol amide sulfo succinate, sulfo succinate POE (5) lauroyl ethyl alcohol Amide salt, undecylenoylamide ethyl sulfocco sulphate, sulfo succinic diethyl hexyl salt, sulfo succinate lauryl salt, sulfo succinate laures salt, and the like, among which POE (2) alkyl (12 to 14) Sulfo succinate disodium is preferred.

In addition, the said (C) component can be used individually by 1 type or in combination of 2 or more types.

There is no restriction | limiting in particular as content of the said (C) component, Although it can select suitably according to the objective, Among these, 1-7 mass% is preferable in the said skin cleansing agent, and 1.5-6 mass% is more preferable. If it is less than 1 mass%, the said content is not preferable at the point of the discharge property of foam at the time of low temperature at the time of filling into a former container, and when it exceeds 7 mass%, it is not preferable at the point which suppressed drying of the skin after washing. On the other hand, if the content is within a more preferred range, it is advantageous in that it can provide a superior skin cleansing agent in eliminating the discharge property of the foam at low temperature when the foamer container is filled and the drying of the skin after washing. .

<Content ratio>

Content ratio of each component of said (A)-(C) is mass ratio, (C) / [(A) + (B)] = 0.05-0.5, 0.1-0.4 are preferable and 0.15-0.4 are more preferable desirable. When the said mass ratio is less than 0.05, it is inadequate in the point of the discharge property of the foam at the time of low temperature at the time of filling into a foamer container, and when it exceeds 0.5, it is insufficient in the point which suppressed drying of the skin after washing | cleaning. On the other hand, if the mass ratio is within a more preferable range, it is advantageous in that it is possible to provide a more excellent skin cleansing agent in eliminating the discharge property of foam at low temperature when the foamer container is filled and the drying of the skin after washing. .

<Optional ingredient>

In addition to each component of said (A)-(C), arbitrary components can be mix | blended with the skin cleansing agent of this invention in the range which does not impair the effect of this invention. As said arbitrary component, it can select suitably from what is normally used for skin cleansing agents, For example, except an said (B) and (C) component, anionic surfactant, such as polyoxyethylene alkyl ether sulfate, and amine oxide , Nonionic surfactants such as polyoxyethylene alkyl ethers, amphoteric surfactants except for the above components (A), oils, silicones, alcohols such as lower or higher alcohols, lanolin derivatives, protein derivatives, acrylic resin dispersions, cationic Pharmaceutical agents such as polymers, anionic polymers, nonionic polymers, vitamins, fungicides, preservatives, pH adjusters, antioxidants, metal blockers, ultraviolet absorbers, animal and plant extracts or derivatives thereof, pigments, pharmaceuticals, pigments, inorganic powders, clay minerals And water insoluble polymer powders such as nylon and polyethylene, propylene glycol, ethyl alcohol, glycerin, water and the like.

<Production>

There is no restriction | limiting in particular as a manufacturing method of the skin cleansing agent of this invention, According to the objective, it can select suitably, For example, said (A)-(C) component, arbitrary components, and water (the whole of skin cleansing agent is 100 The balance may be mixed so as to be a mass%. Moreover, there is no restriction | limiting in particular as an apparatus which prepared the said skin cleansing agent, The stirring apparatus provided with the some stirring blade (propeller, turbine, dispa, etc.) which can be suitably selected according to the objective, and can mix it with the shearing force from among these, Is preferred. In addition, said (A)-(C) component and arbitrary components may be used individually, respectively, in preparing skin cleansing agent, and may be used in the state of the mixture containing 2 or more types of components.

<Container>

Precipitation at low temperature is suppressed, and the skin cleansing agent of the present invention is very suitable as a skin cleanser for filling a foamer container in which the skin cleansing agent is discharged in a bubble shape. Therefore, the container filled with the skin cleansing agent of the present invention is not particularly limited, but a foamer container is preferable, and the skin cleansing agent is a skin cleansing product product formed by filling the foamer container with the skin cleansing agent, or a former. It is also very suitable as a liquid detergent product composed of a container and a skin cleanser filled in the former container.

As said former container, the non-gas type foam discharge container is mentioned, for example. The non-gas type foam discharge container is not particularly limited as long as it can mix the skin cleansing agent with air and discharge it in a foamed state. For example, a squeeze capable of discharging bubbles by pressing the bottle body by hand. A foamer container and a pump former container which can discharge foam by pressing down a nozzle part, etc. are mentioned, It can select suitably according to the objective. As such a foamer container, the container etc. made from Yamato Steel Pipe Co., Ltd., the Yoshino Corporation make, etc. can be used, for example.

The non-gas type foam discharge container usually has a porous membrane body (preferably a plastic material such as nylon, polyester, polyolefin, etc.) for forming bubbles, and the skin cleansing agent passes through the porous membrane body, Bubbles are formed. There is no restriction | limiting in particular as mesh of this porous membrane body, According to the objective, it can select suitably, For example, 100 mesh or more is preferable, 100-400 mesh is more preferable, 200-350 mesh is especially preferable. Moreover, there is no restriction | limiting in particular as the number of sheets of the said porous membrane body, According to the objective, 2-4 pieces are preferable from a viewpoint of improving foaming performance.

More specifically, as the former container, the former container described in JP-A-7-315463, JP-A-8-230961, JP-A-2005-193972 and the like can be suitably used.

<Appearance>

As a property of the skin cleansing agent of this invention, it is preferable that it is a liquid state at normal temperature.

Moreover, as a viscosity of the said skin cleansing agent, when using a foamer container, More specifically, it is a pump former container which can discharge foam by pushing down a nozzle part, for example, two pieces of 200 mesh and 305 mesh In using, 15 mPa * s or less are preferable and 1-10 mPa * s is more preferable on the temperature conditions to be used. In addition, the said viscosity is the value measured by BL-type viscometer (rotor No. 1, 60 rpm, 1 minute after / Tokyo Meter Co., Ltd. product).

If the skin cleansing agent is used in a bathroom or the like, steam or water may be mixed in the pump portion. When the skin cleansing agent remains in the pump portion, the skin cleansing agent may be diluted. As the pH (25 ° C) of the skin cleansing agent, 4 to 6 are preferable in terms of antiseptic force.

In addition, the above-mentioned skin cleansing agent is applied to hand washing as described later (in this specification, "hand washing" refers to applying a foam skin cleansing agent to the skin by hand and washing the skin). In this case, it is necessary that the bubbles discharged from the former container do not immediately disappear (foam holding is good) and are easy to apply onto the skin. Therefore, in this case, about 2500-3100 mPa * s is preferable as a viscosity (foam viscosity) of the said foamy skin cleansing agent. When the said foam viscosity exceeds 3100 mPa * s, it is unpreferable from a point that foam quality becomes a little loose. On the other hand, if the said foam viscosity is in the preferable range, it is advantageous at the point which can provide the skin cleansing agent which is excellent in the sustainability of foam, and is suitable for hand washing. In addition, the said foam viscosity is the value measured using the Brookfield viscometer (NO2, rotation speed 60rpm, 30 second after / Tokyo Meter Co., Ltd.) at 25 degreeC according to the viscosity measuring method of the Japan Drugstore General Test Method. .

<Use>

It does not specifically limit as a use of the skin cleansing agent of this invention, For example, it can apply to body soap, hand soap, face wash, etc. In particular, the skin cleansing agent of the present invention is fine and fine in foaming, excellent in that drying of the skin after washing does not occur, and mild to sensitive skin. It is very suitable as a skin cleansing agent for human skin.

(Skin washing method)

The skin cleansing method of the present invention is characterized by using the skin cleansing agent of the present invention described above.

There is no restriction | limiting in particular as said skin washing | cleaning method, According to the objective, it can select suitably, For example, after wash | cleaning the said liquid skin washing | cleaning agent in sponges, nylon towels, etc., in the cleaning tool, and foaming on the said cleaning tool, And a method of washing the skin, a method of discharging the skin cleaning agent filled in the former foamer container in the form of a foam, applying the discharge foam to the skin by hand or using a cleaning tool, and the like. Can be. Among these, the latter is preferable as the method for washing the skin, and among them, a method (hand washing) for applying the discharge foam to the skin by hand and washing is particularly preferable.

Moreover, in the said skin washing method, there is no restriction | limiting in particular as a site | part of the skin used as a washing object, The whole body including a face and hands and feet can be made into washing object.

In the conventional skin washing method, generally, about 3 g of a liquid detergent is applied to a sponge or nylon towel, and the whole body is washed. However, in terms of usability, if foaming is not easy or a cleaning tool is used, Since excessive friction is applied, there are problems such as drying of the skin after washing and an increase in the amount of transdermal moisture evaporation.

However, the skin washing method of the present invention is preferable because the skin cleaning material is filled into a pump former type container and discharged in a bubble shape, so that it is easy in terms of usability. In addition, the foam at the time of discharging is fine grained and fine, and the durability of the foam is good. For example, by directly discharging the discharging foam by hand about 1 g (approximately 1 g / 1 discharge), and applying it to the skin, The whole body can be washed with a small number of discharges. In addition, in the case of such hand washing, since no cleaning tool is used, drying of the skin after washing and an increase in the amount of transdermal water evaporation can be suppressed and the skin can be washed more mildly.

In addition, even when the discharge foam of the skin cleaner is applied to a cleaning tool (for example, sponge, nylon towel, etc.) that tends to rub against the skin, and washed, the foaming at the time of ejection of the skin cleaner is Because of its fine grain and fineness, and excellent foam durability, it is possible to reduce dryness of skin after washing and increase of transdermal water evaporation compared to the case of washing with liquid detergent, and to gently clean the skin. Can be.

Example

Hereinafter, although an Example and a comparative example are shown and this invention is demonstrated concretely, this invention is not limited to the following Example. In addition, in the following example, when there is no specification in particular, "%" of a composition shows the mass%, a ratio shows the mass ratio, and the quantity of each component in a table | surface is the quantity converted in pure parts.

[Examples 1 to 17 and Comparative Examples 1 to 6]

The skin cleansing agent of the composition shown to Tables 1-4 was prepared according to a fixed rule, and the obtained liquid skin cleansing agent was adjusted to the initial value pH5 (pH meter: HM-30G / measured by Doa Electric Co., Ltd.). 400 mL was filled in the pump container of the capacity 500 mL which has a dispenser. Moreover, 400 mL of said liquid skin cleansing agents were filled into the pump former container (1 piece of 200 meshes and 1 piece of 305 meshes) of a 500 mL volume, and the non-aerosol type foaming skin cleansing agent was obtained. In addition, as each component in Tables 1-4, the goods shown in Table 8 mentioned later were used, respectively.

The following evaluation was performed about the obtained skin cleansing agent. The results are written together in Tables 1-4.

-Discharge property of foam at low temperature when filling in the former container-

After storing the non-aerosol-type foam skin cleansing agent at 5 ° C. for 1 week, the operation of discharging from the pump former container under the condition of 5 ° C. was repeated 300 times. Evaluated. Evaluation was performed about five samples, and the result was shown by the average value.

<Evaluation Criteria>

5: Coarse foam does not mix, and it can discharge with fine grain with a fine grain.

4: Partially thick foam is mixed, but it can be discharged by fine grain of fine grain, and there is no problem in quality.

3: Although coarse foam is mixed as a whole, it can discharge with fine grain of fine grain, and there is no problem in quality.

2: Coarse foam is mixed as a whole, it cannot discharge with fine grain of fine grain, and there exists a quality problem.

1: No bubbles are formed, the texture cannot be discharged into fine bubbles, and there is a problem in quality.

-Fine-grained fine details-

A nylon towel moistened with about 3 g of a liquid skin cleansing agent with a tap water of 40 ° C. was used, and the fine grains of foaming when the arm was washed were evaluated. Evaluation was performed by 30 professional debaters with high evaluation precision, it scored based on the following criteria, and showed the result by the average value.

<Evaluation Criteria>

(Double-circle): More than 25 people felt that the fine grain of foam was good.

(Circle): 20-24 people felt that the fine grain of foam was good.

(Triangle | delta): 15-19 people felt that the fine grain of foam was favorable.

X: 14 people or less felt that the fine grain of a bubble was good.

Increase in transdermal moisture evaporation

Generally, it is known that the amount of transdermal water evaporation increases when the skin protection component is excessively removed by the skin cleansing agent. When the barrier function of the skin is lowered and the amount of transdermal moisture evaporation is increased, there is a feeling of irritation such as tingling or itching after washing. Then, about 3 g of liquid skin cleansing agent, four 30 generations of male panelists washed the inner part of the upper arm by hand for 1 minute, and then purified under the environment of temperature of 20 ° C and humidity of 40% for 30 minutes, and then transdermal moisture evaporation amount. The measuring device (AS-TW2 ASAHI BIOMED Co., Ltd.) measured the transdermal water evaporation amount 5 times about each arm. Regarding the average value of five times, the increase rate (%) after washing when the transdermal moisture evaporation value value before washing is 100 is calculated based on the following equation, and from the average value of four, the increase in the transdermal water evaporation amount (deterioration of the skin barrier function) is calculated. Evaluated. The results are shown based on the following evaluation criteria. In addition, it can be said that it is a mild washing | cleaning agent with respect to skin as much as a skin washing | cleaning agent with a low rate of increase of transdermal water evaporation quantity (high evaluation standard value) compared with before washing | cleaning.

<Expression>

Increase rate (%) = [water evaporation amount after washing (five times of average values)-water evaporation amount before washing (five times of average values)] / water evaporation amount before washing (five times of average values) * 100

<Evaluation Criteria>

5: increase rate is less than 0%

4: increase rate from 1 to 20%

3: the increase rate is 21 to 40%

2: the increase rate is 41 to 60%

1: the increase rate is more than 61%

-There is no dryness of the skin after washing

About 3 g of liquid skin cleansing agent was taken in a nylon towel moistened with a tap water at 40 ° C., and the inhibition of dryness of the skin after washing the arm was evaluated. Evaluation was performed by ten professional debaters with high evaluation precision, it scored based on the following criteria, and showed the result by the average value.

<Evaluation Criteria>

(Double-circle): 8 or more of 10 replies that drying suppresses

(Circle): 6-7 of 10 reply that drying suppresses

(Triangle | delta): Four to five in ten responded that drying was suppressed

×: Three or less people answered that they suppress drying

From the results of Tables 1 to 4, all of the components (A) to (C) are impregnated, and the skin cleansing agent of the present invention having a mass ratio of (C) / [(A) + (B)] within a certain range (Example 1 to 17) were found to be excellent skin cleansing agents having good foam texture and fineness, and having good foam discharge property at low temperatures when filled in a foamer container and capable of suppressing drying of the skin after washing. On the other hand, the skin cleansing agent which does not contain any of (A)-(C) component, or whose mass ratio of (C) / [(A) + (B)] does not satisfy a fixed range (Comparative Example 1 -6) were inferior in the fineness of the fine grain of foam, the discharge property of foam at the time of low temperature when it filled into a foamer container, the dryness of the skin after washing | cleaning, or at least any one point.

Example 18 Anti-inflammatory Formulation Liquid Cleaning Agent

The anti-inflammatory compounding liquid cleaning agent of the compounding composition shown below was prepared by the fixed rule.

                                                       mass%

Lauric acid amide propyl betaine 10.00

Palm oil alkyl-N-hydroxyethylimidazoliniumbetaine 0.50

N- Palm Oil Fatty Acid Methyl Taurine Sodium 2.50

POE (2) alkyl (12-14) sulfo succinate disodium 2.00

Sulfo succinate POE (5) lauroyl ethyl alcohol amide

2 sodium (Sanyo Kasei Kogyo Co., Ltd.) 0.50

Propylene Glycol 13.00

Concentrated Glycerin 5.00

1,3-butylene glycol 2.00

Cationized Cellulose (Lion Corporation) 0.05

Dipotassium copper potassium acid 0.10

0.50

Blue No. 1 0.00015

Yellow No. 4 0.0001

Adjusted amount to citric acid pH5.0

Purified water                                                    Balance

Total 100.00

(C) / [(A) + (B)] ratio = 0.19

[Example 19: Deodorant and foaming detergent for sterilization]

The deodorant and the foaming detergent for sterilization of the compounding composition shown below were prepared according to a fixed rule.

                                                           mass%

Lauric acid amide propyl betaine 9.00

Palm Oil Fatty Acid Amide Propyl Betaine 1.00

Lauryl Dimethyl Amino Betaine 0.50

N- Palm Oil Fatty Acid Methyl Taurine Sodium 2.50

POE (2) alkyl (12-14) sulfo succinate disodium 2.50

Propylene Glycol 13.00

Dipropylene glycol 0.50

Concentrated Glycerin 5.00

1,3-butylene glycol 2.00

Dimethyl diallyl ammonium chloride acrylamide copolymer liquid

(Nalco Keyboard, Inc.) 0.50

Ethyl alcohol 3.00

Isopropyl Methylphenol 0.10

Pyrokutone Oramine 0.10

L-menthol 0.30

0.50

Blue No. 1 0.0001

Yellow No. 4 0.0001

Adjusted amount to citric acid pH5.0

Purified water                                                           Balance

Total 100.00

(C) / [(A) + (B)] ratio = 0.19

Example 20 Baby Liquid Liquid Cleaning Agent

The mild liquid cleaning agent for baby of the compounding composition shown below was prepared by the fixed rule.

                                                                 mass%

Lauric acid amide propyl betaine 5.00

Lauryl Dimethyl Amino Betaine 0.50

Palm oil fatty acid dimethyl amino hydroxy sulfobetaine 0.50

N- Palm Oil Fatty Acid Methyl Taurine Sodium 0.50

Sulfo succinate POE (5) lauroyl ethyl alcohol amide 2 sodium 1.50

Propylene Glycol 10.00

Concentrated Glycerin 4.50

1,3-butylene glycol 2.00

Dipropylene glycol 0.50

Rosemary Extract 1.00

Jojoba oil 0.50

Cationized Cellulose (Lion Corporation) 0.05

Dipotassium copper potassium acid 0.10

0.50

Blue No. 1 0.00015

Yellow No. 4 0.0001

Adjusted amount to citric acid pH5.0

Purified water                                                              Balance

Total 100.00

(C) / [(A) + (B)] ratio = 0.23

About the skin cleansing agent of Examples 18-20, each evaluation was performed similarly to the above. The results are shown in Table 5. The skin cleansing agents of Examples 18 to 20 had excellent foaming texture and were excellent skin cleansing agents capable of suppressing foam discharge at low temperature when filled in a foamer container, and being able to suppress dryness after washing. .

Example 21 Evaluation of Cleaning Method

The following evaluation was performed for the purpose of finding out the washing | cleaning method suitable for the skin cleansing agent of this invention.

Difference in increase of transdermal water evaporation amount by washing method

The skin cleanser of Example 1 was filled into a pump former container (1 sheet of 200 mesh and 1 sheet of 305 mesh), and approximately 1 g of discharge foam was taken in a nylon towel moistened with water or tap water at 40 ° C. The four people wash | cleaned the upper arm inner part for 1 minute, and continued for 1 day and 5 days. After washing | cleaning on the 5th day, after purifying for 30 minutes in the environment of the temperature of 20 degreeC, and 40% of humidity, the transdermal moisture evaporation amount measurement apparatus (made by AS-TW2 ASAHI BIOMED) was measured 5 times with respect to each leg, and the transdermal moisture evaporation amount was measured. . Regarding the average value of five times, the transdermal water evaporation amount value before washing is 100 based on the following formula, and the increase rate (percent of transdermal water evaporation) is calculated based on the following equation. Rated it. Table 6 shows the results based on the following evaluation criteria. In addition, it can be said that it is a cleaning method which is low in the rate of increase of transdermal water evaporation quantity (high evaluation standard value) compared with before washing, and a mild washing method for skin.

<Expression>

Growth rate (%) = [water evaporation amount after washing (five times of average values)-water evaporation amount before washing (five times of average value)] / water evaporation amount before washing (five times of average value) * 100

<Evaluation Criteria>

5: The growth rate is less than 0%

4: the increase rate is from 1 to 20%

3: 21 to 40% growth rate

2: growth rate is 41 to 60%

1: The increase rate is more than 61%

Difference in dryness by the washing method

The skin cleaning agent of Example 1 was filled into a pump former container (one piece of 200 mesh and one piece of 305 mesh), and approximately 1 g of discharge foam was taken in a nylon towel moistened with water or tap water at 40 ° C. 1 minute of washing | cleaning for 1 minute was performed continuously for 5 days. Inhibition of the dryness of the skin after washing on the fifth day was evaluated. Evaluation was performed by ten professional panelists with high evaluation accuracy, and scored based on the following criteria. The average value is shown in Table 6 as a result.

<Evaluation Criteria>

(Double-circle): 8 or more of 10 replies that drying suppresses

(Circle): 6-7 of 10 reply that drying suppresses

(Triangle | delta): Four to five in ten responded that drying was suppressed

×: Three or less people answered that they suppress drying

From the results in Table 6, although the skin cleansing agent of the present invention employs any cleaning method of hand washing and nylon towel cleaning, good results can be obtained with respect to no drying of the skin after washing and an increase in the amount of transdermal water evaporation. Especially in hand washing, the effect was remarkable. From this, it turns out that the skin cleansing agent of this invention is especially a skin cleansing agent suitable for hand washing.

Example 22 Evaluation of Advantages of Foam Viscosity and Foam Sustainability

When the skin cleansing agent is applied to hand washing as described above, it is necessary that the foam discharged from the former container does not immediately disappear (foam holding is good) and is easy to apply on the skin. Then, the merit of the foam viscosity of the skin cleansing agent of this invention, and the persistence of foam was evaluated as follows.

Foam Viscosity

The skin cleansing agent of each said Example and comparative example shown in Table 7 and a commercially available skin cleansing agent were filled in a pump former container (one piece of 200 mesh and one piece of 305 mesh), and the foam viscosity of discharge foam is the Japan pharmacy general. According to the viscosity measurement method of the test method, it measured at 25 degreeC using the Brookfield viscometer (NO2, rotation speed 60rpm, 30 second after / Tokyo Meter Co., Ltd. product). The results are shown in Table 7. In addition, the said foam viscosity can be evaluated that about 2500-3100 mPa * s is preferable from a viewpoint of the fine granularity of foam quality, and the persistence of foam.

Advantages of Foam Sustainability

The skin cleansing agent of each said Example and comparative example shown in Table 7, and a commercially available skin cleansing agent are filled in a pump former container (one piece of 200 mesh and one piece of 305 mesh), and about 5 g of discharge foams are taken to an SV100 vial bottle, It filled uniformly and evaluated the persistence of bubble holding | maintenance. The inspection height after initial discharge bubble filling and the inspection height after 30 minutes were measured. About the average value of 5 times, the sustained percentage (%) after 30 minutes of discharge bubble filling when the bubble height immediately after discharge bubble filling was 100 was computed based on the following formula, and the durability of foam was evaluated. Table 7 shows the results based on the following evaluation criteria. In addition, it can be said that the higher the sustaining rate (higher evaluation standard value) of the skin cleansing agent is, the higher the sustainability of the foam is, compared to immediately after filling.

<Expression>

% Sustain =

[Pogo after 30 minutes of discharge bubble filling / pogo just after discharge bubble filling] * 100

<Evaluation Criteria>

5: duration is over 90%

4: 71-89% duration

3: duration is 51-70%

2: duration is 31-50%

1: Sustainability is below 30%

* Main component of Commercial A: Alkyl (C12-15) potassium phosphate / lauryldimethyl hydroxy propyl sulfo betaine / 1.3-butanediol / polypropylene glycol / glycerine = 10/3 / 2.5 / 0.3 / 2 (mass%)

** Main component of Commercial Product B: Cocoyl Glycine Potassium / Undecylhydroxyethyl Imidazolinium Betaine Sodium / Fluphilene Glycol / Glycerine = 13/4/12/8 (mass%)

*** Commercial item C: Plant story Herb brand bubble face wash (product made by Lion Co., Ltd.)

From the result of Table 7, it turned out that the skin cleansing agent of this invention is excellent in the foam viscosity and the persistence of foam compared with the skin cleansing agent of a comparative example, and commercially available skin cleansing agent. Therefore, it turns out that the skin cleansing agent of this invention is a skin cleansing agent suitable for hand-washing, ie, a skin cleansing agent which is easy to apply | coat on skin, and foam | bubble discharged from a foamer container does not lose | disappear immediately (good foam retention is good). have.

In addition, the acquisition destination of each component used by each said Example is as follows.

The skin cleansing agent of the present invention can be widely applied to, for example, body soaps, hand soaps, face washes, etc. Among them, the skin cleansing agent is fine and fine in foam texture, and the degree of dryness of the skin after washing It is excellent in absence and mild to sensitive skin, so it is very suitable as a skin cleansing agent for infants, young women, elderly people and people with sensitive skin.

There is no restriction | limiting in particular in the skin washing | cleaning method using the said skin cleansing agent, but from a viewpoint which wash | cleans skin mildly, the bubble-shaped skin washing | cleaning discharged from the foamer container without using a cleaning tool, such as a sponge and a nylon towel, is also needed. A hand-washing method can be preferably employed, which takes a dye in the hand and washes the skin with the foam.

Claims (4)

(A) a betaine type amphoteric surfactant,
(B) N-acyl methyl taurine salt,
(C) contains at least one of polyoxy ethylene alkyl sulfo succinate and alkyl sulfo succinate,
The content ratio of said each component is (C) / [(A) + (B)] = 0.05-0.5 in mass ratio, The skin cleansing agent characterized by the above-mentioned. The method of claim 1,
A skin cleansing agent that is filled in a former container. A skin cleansing method comprising the step of using the skin cleansing agent according to claim 1. The method of claim 3, wherein
A skin cleaning method having a foamed skin cleaning material discharged from a foamer container, applied to the skin by hand to clean the skin.